<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>computed的缓存特性</title>
    <script src="../../dist/vue.js"></script>
  </head>
  <body>
    <div id="app">
      <button @click="changeValue">更新Value-----{{value}}</button>
      <button @click="getComputedValue">{{computedValue}}</button>
    </div>

    <script>
      new Vue({
        el: "#app",
        data() {
          return {
            value: 1,
          };
        },
        computed: {
          computedValue() {
            return this.value + "--" + Math.random();
          },
        },
        methods: {
          changeValue() {
            this.value++;
          },
          getComputedValue() {
            console.log(this.computedValue);
          },
        },
      });
    </script>
  </body>
</html>
